Brazilian Quartz 13.991ct Loose Patch
Sale price¥7,980
Brazilian bicolor tourmaline cat's eye 22.056ct loose stone
Sale price¥188,000
Argentine Inca Rose 15.960ct loose stone
Sale price¥9,800
Argentine Inca Rose 15.190ct loose stone
Sale price¥9,800
Tanzanian Rhodolite Garnet 10.608ct Loose Stone
Sale price¥79,800
Brazilian Green Tourmaline 11.453ct Loose Stone
Sale price¥158,000
[10/17 10:00 PM Release] Brazilian Amethyst 14.813ct Loose Stone
Sale price¥15,800
[10/2 10 PM Release] Brazilian Ametrine 16.565ct Loose Gemstone
Sale price¥29,800
[Available 9/19 at 10 PM] Mexican Cantera Opal 24.256ct Loose Stone
Sale price¥69,800
Sri Lankan glass body (sapphire crystal) 10.140ct rough stone
Sale price¥22,800
【9/5 22:00 Release】 Brazilian Paraiba Tourmaline 20.343ct Rough Stone
Sale price¥15,800
[On sale 9/6 at 10 PM] Kochi Prefecture Peach Coral 13.010ct Loose Stone
Sale price¥12,800
Green Fluorite 38.074ct Loose
Sale price¥148,000
Brazilian Yellow Beryl 11.411ct Loose Stone, Japan-Germany Exchange
Sale price¥25,800
Euclase with Pyrite from Colombia 37.340ct Rough Gemstone (Hokikyosho)
Sale price¥12,800
[Item 12564087] Kochi Prefecture Boke Coral (Sango) 15.237ct Loose Stone
Sale price¥69,800
[Lottery Sale 0707_06] Kunzite from Afghanistan, 69.722ct Loose Stone
Sale price¥258,000
[Lottery Sale 0428_2_07] Watermelon Tourmaline 14.780ct Loose Stone
Sale price¥128,000
Brazilian Blue Tourmaline in Quartz 10.466ct Loose
Sale price¥39,800
Kochi Prefecture Aka Sango (Red Coral) 10.209ct Loose Stone
Sale price¥29,800
[12552038] Beryl Cat's Eye 32.703ct Loose Stone
Sale price¥98,000
[12552306] Iolite 14.158ct loose stone
Sale price¥258,000
Brazilian Quartz in Quartz 15.373ct Loose Stone
Sale price¥18,800
Brazilian Aquamarine 68.088ct Loose Stone with Gem Identification Report
Sale price¥39,800
Australian Boulder Opal 41.775 ct Loose Stone
Sale price¥19,800
Australian Boulder Opal 12.216ct Loose
Sale price¥15,800
Brazilian Tricolor Tourmaline 32.207ct Loose (Parti-color Tourmaline)
Sale price¥398,000
Australian Opal with Matrix (14.840ct Loose Stone) with Certificate
Sale price¥69,800
Kunzite from Afghanistan (Lilac Pink) 49.724 ct Loose Gemstone
Sale price¥298,000
Mexican Cantera Opal 17.284ct Loose
Sale price¥39,800
Mozambique Almandine Garnet 17.770ct Loose Stone
Sale price¥98,000
Mexican Cantera Opal 32.560ct Loose
Sale price¥29,800
27.410ct Mexican Cantera Opal Loose Gemstone
Sale price¥25,800
Finnish Labradorite 56.209ct Loose Gemstone
Sale price¥16,800
Mexican Cantera Opal 10.379ct Loose Stone
Sale price¥39,800
Madagascar Apatite 19.863ct Loose
Sale price¥128,000
Mexican Cantera Opal 15.195ct Loose
Sale price¥12,800
Aquamarine in quartz 18.954ct rough stone
Sale price¥18,800
Why not take your favorite gemstone that you found at KARATZ and have it made into custom-made jewelry? It will be made by skilled Japanese craftsmen.
We carefully craft each piece of jewelry, starting with the stone setting, to match the individual characteristics of the gemstone.
So that more people can feel closer to jewellery and enjoy it easily.
We will introduce KARATZ's thoughts on products, the attention to detail and efforts in selecting gemstones and creating jewelry.
KARATZ's Initiatives and Social Contributions
We will introduce KARATZ's efforts, including nurturing the next generation and business collaboration to develop the industry, and supporting children in Sri Lanka, the land of jewels.
KARATZ Books
These are books that KARATZ has been involved in writing, supervising, and planning. They are all books that allow you to enjoy gemstones from various angles. You can also purchase them directly.
jeweler's tools
For those who want to enjoy jewelry more but don't know what tools to use, we will introduce tools that are also used by KARATZ staff. You can also purchase them directly.